Tunable Giant Exchange Bias in an Intercalated Transition Metal Dichalcogenide

@article{Doyle2019TunableGE,
  title={Tunable Giant Exchange Bias in an Intercalated Transition Metal Dichalcogenide},
  author={Spencer Doyle and Caolan John and Eran Maniv and Ryan A. Murphy and Ariel Maniv and Sanath K. Ramakrishna and Yunlong Tang and Ramamoorthy Ramesh and Jeffrey R. Long and Arneil P. Reyes and James G. Analytis},
  journal={arXiv: Strongly Correlated Electrons},
  year={2019}
}
The interplay of symmetry and quenched disorder leads to some of the most fundamentally interesting and technologically important properties of correlated materials. It also poses the most vexing of theoretical challenges. Nowhere is this more apparent than in the study of spin glasses. A spin glass is characterized by an ergodic landscape of states - an innumerable number of possibilities that are only weakly distinguished energetically, if at all. We show in the material Fe$_x$NbS$_2$, this… 
12 Citations
Planar Hall study in molecular exchange-bias system
Exchange-bias as an interfacial phenomenon is extensively investigated in bilayer films of a ferromagnet (FM) and an antiferromagnet (AFM) with large internal magnetic anisotropy. This mechanism is
Crystalline chirality and interlocked double hourglass Weyl fermion in polyhedra-intercalated transition metal dichalcogenides
Introducing crystalline chirality into transition metal dichalcogenides (TMDs) has attracted much attention due to its modulation effect on optical properties and the potential to reveal new forms of
Half-magnetization plateau and the origin of threefold symmetry breaking in an electrically switchable triangular antiferromagnet
We perform high-field magnetization measurements on the triangular lattice antiferromagnet Fe$_{1/3}$NbS$_2$. We observe a plateau in the magnetization centered at approximately half the saturation
Cooling Field Dependence of Exchange Bias in Mn-Doped Metal- Organic Framework [NH2(CH3)2][FeIIIFeII(HCOO)6].
Herein, an intriguing exchange bias (EB) effect manifesting itself from positive to negative with an increase in the cooling field (HFC) is reported in the single crystal of Mn-doped metal-organic
Enhancement of Exchange Bias and Perpendicular Magnetic Anisotropy in CoO/Co Multilayer Thin Films by Tuning the Alumina Template Nanohole Size
The interest in magnetic nanostructures exhibiting perpendicular magnetic anisotropy and exchange bias (EB) effect has increased in recent years owing to their applications in a new generation of
Three-state nematicity in the triangular lattice antiferromagnet Fe1/3NbS2
TLDR
It is shown that a qualitatively distinct nematic state arises in the triangular lattice antiferromagnet Fe1/3NbS2, and lays the groundwork for devices that exploit analogies with nematic liquid crystals.
Tailoring Interfacial Exchange Anisotropy in Hard–Soft Core-Shell Ferrite Nanoparticles for Magnetic Hyperthermia Applications
Magnetically hard–soft core-shell ferrite nanoparticles are synthesized using an organometallic decomposition method through seed-mediated growth. Two sets of core-shell nanoparticles (S1 and S2)
Author Correction: Ferromagnetic excess moments and apparent exchange bias in FeF2 single crystals
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Exchange Bias Effects in Ferromagnetic MnSb2Te4 down to a Monolayer
...
...

References

SHOWING 1-10 OF 39 REFERENCES
Design of compensated ferrimagnetic Heusler alloys for giant tunable exchange bias.
TLDR
A family of Heusler alloys with a compensated ferrimagnetic state is designed, exemplifying the universality of the concept and the feasibility of room-temperature applications and may lead to the development of magneto-electronic devices and rare-earth-free exchange-biased hard magnets.
Exchange bias using a spin glass.
TLDR
It is argued that all features can be understood within the context of a random-field model for long-ranged oscillatory Ruderman-Kittel-Kasuya-Yosida (RKKY) coupled spins and show that a Co/CuMn bilayer system exhibits all the rich phenomena of coercivity enhancement, bias-field shifts and training effects associated with a conventional ferromagnet/antiferromagnets system.
Spontaneous exchange bias formation driven by a structural phase transition in the antiferromagnetic material.
TLDR
The magnetic characterization indicates that structural defects in the antiferromagnetic layer are behind the resulting large value of the exchange bias field and its good thermal stability.
3d transition-metal intercalates of the niobium and tantalum dichalcogenides. I. Magnetic properties
Abstract The Hall coefficient and resistivity of the first-row transition-metal intercalates, M1/3TaS2 (M = V, Cr, Mn, Fe, Co, Ni), Mnl/4TaS2, M1/3NbS2 (M = V, Cr) and Fel/4NbSe2 have been measured
Electrical and magnetic properties of some first row transition metal intercalates of niobium disulphide
Abstract The resistivity, Hall effect and magnetic susceptibility have been measured as a function of temperature for the first row transition metal intercalates of niobium disulphide, M1/3NbS2 (M =
Exchange bias related coercivity enhancement as a characterization tool
We present a phenomenological approach to access the coercivity enhancement which appears in all exchange bias systems. The coercivity enhancement is correlated to the structural properties of the
3d transition metal intercalates of the niobium and trantalum dichalcogenides
Abstract Optical reflectivity spectra of the first-row transition metal intercalation complexes, M1/3NbS2 and M1/3TaS2 (M = V, Cr, Mn, Fe, Co, Ni), Mn1/4 TaS2 and Fe1/4 NbSe2 have been measured at
Tunable exchange bias in dilute magnetic alloys – chiral spin glasses
TLDR
A unidirectional anisotropy appears in field cooled samples of dilute magnetic alloys at temperatures well below the cusp temperature of the zero field cooled magnetization curve and is concluded to originate from one and the same exchange mechanism: the Dzyaloshinsky-Moriya interaction.
Heat Capacity of Intercalated Layered Materials FexNbS2 at Low Temperature
The heat capacities and magnetic susceptibilities of powdered samples of FexNbS2 (x=0.14, 0.21 and 0.30) were measured at temperatures from 8 to 303 K and from 5 to 300 K, respectively. For
Asymmetric reversal in aged high concentration CuMn alloy
TLDR
A modified Stoner-Wohlfarth model was successfully applied to the data using Monte Carlo simulations, in order to gain insight into the dependence of the cluster shape anisotropy and exchange an isotropy on the cooling field.
...
...